WO1997041009A1 - Dispositif antivol pour vehicules - Google Patents

Dispositif antivol pour vehicules Download PDF

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Publication number
WO1997041009A1
WO1997041009A1 PCT/JP1997/000891 JP9700891W WO9741009A1 WO 1997041009 A1 WO1997041009 A1 WO 1997041009A1 JP 9700891 W JP9700891 W JP 9700891W WO 9741009 A1 WO9741009 A1 WO 9741009A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
engine
key insertion
failure
ignition
Prior art date
Application number
PCT/JP1997/000891
Other languages
English (en)
Japanese (ja)
Inventor
Satoru Matsumoto
Kazuhiko Hayashi
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to EP97907376A priority Critical patent/EP0893316B1/fr
Priority to AU19431/97A priority patent/AU706683B2/en
Priority to DE1997632408 priority patent/DE69732408T2/de
Publication of WO1997041009A1 publication Critical patent/WO1997041009A1/fr
Priority to US09/177,892 priority patent/US6130604A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor

Definitions

  • the present invention relates to an engine start control device, and more particularly to a device for stopping the start of an engine when an operation for starting the engine is performed by an incorrect key or the like.
  • a door or the like has a lock device that can be released by a correct key, and the engine can be started only by a correct ignition key.
  • a further antitheft mechanism be provided to ensure theft prevention, and that it is being put to practical use.
  • the Automobile Technology Casebook / Issue No. 95603 published by the Japan Automobile Manufacturers' Association Intellectual Property Subcommittee 1959.12.2.1
  • a vehicle anti-theft device that prohibits the start of the engine when not in use is disclosed.
  • the ignition key has a built-in transponder for transmitting a password.
  • This transbonder receives power from radio waves from an antenna provided in the key cylinder and transmits the stored password code.
  • An immobilizer ECU is connected to the key cylinder antenna, and it is determined whether or not the transmitted password is correct.
  • the immobilizer ECU is connected to an engine ECU that controls the ignition (ignition) and fuel supply (fuel injection) of the engine.
  • the immobilizer ECU informs the engine ECU whether the correct password has been obtained. You. If the correct password cannot be obtained in the immobilizer ECU, the engine ECU prohibits the supply of fuel to the engine and the ignition in the engine, and controls the stop of the engine.
  • the engine ECU starts the engine as usual in accordance with the ignition on by operating the ignition key, and receives the signal from the immobilizer ECU to stop the engine.
  • the star is rotating, and the power supply voltage fluctuates greatly. Therefore, communication between the immobilizer ECU and the engine ECU is performed after the engine speed reaches 500 rpm or more.
  • the engine ECU when the engine speed becomes 500 rpm or more, the engine ECU creates a predetermined rolling code A by generating random numbers and sends it to the immobilizer ECU. If the immobilizer ECU can recognize the correct key, a rolling code B is generated by the same random number generation, and this is returned to the engine ECU. As a result, it is confirmed that the correct key has been used by the engine ECU, the key confirmation processing is terminated, and the normal engine operation is continued.
  • the engine ECU stops ignition and fuel injection. Therefore, if the operation is not performed with the correct key, the engine is stopped.
  • the immobilizer ECU determines that the theft is obtained based on the result of the code collation
  • the level of the communication line to the engine ECU is immediately set to the L level. Then, the engine ECU detects the L level of the communication line and stops the engine. Therefore, with this device, the engine can be stopped early if it is determined that the vehicle is stolen.
  • a key insertion detection switch for detecting key insertion is known, and by using this key insertion detection switch, it is possible to early detect that a key operation is performed. Therefore, it is considered possible to end the key verification before the start of the star motor operation.
  • Japanese Patent Application Laid-Open No. Hei 7-307983 proposes that the judgment time be extended when a key switch fails, but in this example, the time is simply extended and the engine start is permitted. The problem was that the time was too long.
  • the present invention has been made to solve the above problems, and has as its object to provide a vehicle anti-theft device capable of efficiently determining whether a key is appropriate even when a key detection switch fails. Aim. Disclosure of the invention
  • the present invention provides key insertion detecting means for detecting insertion of a key for operating ignition on / off, and key operation for starting operation in response to detection of key insertion and determining whether or not the key is used.
  • Determination means for detecting insertion of a key for operating ignition on / off, and key operation for starting operation in response to detection of key insertion and determining whether or not the key is used.
  • Determination means for detecting insertion of a key for operating ignition on / off, and key operation for starting operation in response to detection of key insertion and determining whether or not the key is used.
  • Determination means for controlling permission or non-permission of operation of the engine according to the result of the propriety determination
  • failure detection means for detecting a failure of the key insertion detection means; and detection of the failure.
  • the apparatus further comprises: a determination timing changing means for changing a determination timing of use suitability so as to perform the suitability judgment at least after the completion of the motor operation.
  • the timing for judging whether or not the key can be used is determined after the operation of the star and night mode is completed. Therefore, when the power supply voltage after driving is stable, not during the operation when the power supply voltage is unstable, it is possible to determine whether or not the key can be used. Therefore, the possibility of erroneously recognizing a proper start operation using a correct key can be reduced.
  • a failure of the key insertion detecting unit is not detected.
  • the appropriateness of the key is determined within a predetermined period of time, and when a failure of the key insertion detecting means is detected, the engine speed reaches the predetermined speed.
  • the key is determined for a predetermined period of time.
  • the engine rotation speed becomes equal to or more than the predetermined rotation, the drive stop of the star mode is detected, and then the key usage is determined. Therefore, even when the key insertion detection switch has failed, it is possible to reliably determine whether or not the key can be used.
  • the engine can be stopped reliably even if a pseudo signal for driving in the star or evening mode is input.
  • the predetermined time is sequentially shortened each time an engine start operation is failed.
  • the predetermined time when the failure of the key insertion detection unit is detected is longer than the predetermined time when the failure of the key insertion detection unit is not detected. It is characterized by the following.
  • FIG. 1 is a block diagram showing the entire system.
  • FIG. 2 is a timing chart showing the operation of the embodiment (when the key insertion detection switch is normal).
  • FIG. 3 is a timing chart showing the operation of the embodiment (when the key insertion detection switch fails).
  • FIG. 4 is a flowchart showing the operation of the embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a diagram showing an overall system of a vehicle anti-theft device according to the present embodiment.
  • the ignition key 10 also used for opening and closing the door opening of the car has a built-in trans-bonder 12.
  • the transbonder 12 includes an antenna, a power supply circuit, a storage unit, a readout circuit, a transmission circuit, and the like.
  • the transponder 12 receives a predetermined radio wave from the outside, the transponder 12 receives the radio wave with the antenna and supplies the radio wave to the power supply circuit.
  • the power supply circuit obtains power from received radio waves and supplies power to various circuits. Then, the personal identification number stored in the storage unit is read out and transmitted from the antenna via the transmission circuit.
  • the key cylinder 14 is rotatable by an ignition key 10 having a predetermined shape (or a predetermined magnetization or the like).
  • an accessory switch, an ignition switch, and the like are used. ⁇
  • Various switches such as a switch and a switch are operated. That is, the accessory switch controls the power on / off of the accessory device, the ignition switch controls the power supply of ignition plugs and other devices required for traveling, and the star switch controls the power on / off of the power switch. .
  • Rotation is enabled only when the tip of the inserted ignition key 10 fits the cylinder 14.
  • An antenna 16 is provided around the front side of the key cylinder 14 (the side into which the key 10 is inserted). A predetermined radio wave is transmitted from the antenna 16 to the transbonder 12, and a radio wave from the transbonder 12 is received by the antenna 16.
  • An engine control ECU 20 is connected to the antenna 16 via an amplifier 18 for amplifying a received signal.
  • the key cylinder 14 is provided with a key insertion detection switch 22, and a signal indicating whether or not the key 10 is inserted is supplied to the engine control ECU 20. Therefore, the engine control ECU 20 can detect the key 10 when it is inserted, transmit a predetermined radio wave from the antenna 16 and receive a reply from the transponder 12 at this time. Can be.
  • the engine control ECU 20 stores therein a reference code corresponding to the password code of the key 10 therein. In this example, the reference code is stored in EEPROM 20a. are doing. Then, the code collating unit 2 Ob determines whether the verification code transmitted from the transbonder 12 via the antenna 16 matches the reference code.
  • the switch on / off information from the key cylinder 14 is supplied to the engine control ECU 20, and the switch detection unit 20c detects the state of the switch operation. That is, the on / off state of the accessory switch, the ignition switch, and the switch is recognized by the switch detector 20c.
  • the key cylinder 14 is provided with a key insertion detection switch 22.
  • the key insertion detection switch 22 detects the key 10 being inserted into the key cylinder 14.
  • the key input detection switch 22 is usually formed of mechanical contacts, but various types such as an optical type can be used. Then, the key insertion detection section 20d recognizes the key insertion from the output of the key insertion detection switch 22.
  • the failure detection unit 20e detects a failure of the key insertion detection switch 22 from the detection results of the key insertion detection unit 20d and the switch detection unit 20c. That is, the switches are turned on and off after the key is inserted. Therefore, although the key insertion is not detected, the failure of the key insertion detection switch 22 is detected by various switches being turned on and off, and inspection during engine driving.
  • the engine control ECU 20 is provided with an operation control unit 20 f, which includes an ignition (plug ignition) control unit 26 and a fuel injection (fuel supply) control. Controls part 28.
  • the ignition control unit 26 and the fuel injection control unit 28 are connected to the engine 30.
  • the ignition control and the fuel supply of the engine are controlled by the ignition control unit 26 and the fuel injection control unit 28. That is, the operation control unit 20 of the engine control ECU 20 detects the ignition on due to the rotation of the key cylinder 14 by the signal from the switch detection unit 20c, and accordingly, the electric power to the ignition plug is detected. Make the supply and fuel supply to the engine possible. Then, with the rotation of the engine 30 according to the rotation of the star, the specified ignition and fuel supply are performed, and after the engine 30 is started, the ignition and fuel supply are continuously controlled even after the engine 30 starts to rotate. I do.
  • the engine control ECU 20 is connected to a rotation sensor 32 that detects the number of revolutions of the engine 30 and detects the number of revolutions of the engine 30.
  • the engine system The control ECU 20 is also provided with a transmitting / receiving circuit for performing communication via the antenna 16.
  • the failure detection section 20e detects whether or not the key insertion detection switch 22 has failed (S11). If no failure has occurred, the engine control ECU 20 has started up when the driver has inserted the ignition key 10 into the key groove of the key cylinder 14.
  • engine control ECU 20 transmits a predetermined radio wave to antenna 16 and receives a signal from transponder 12. Then, a key determination is made as to whether the personal identification code in the received signal matches the reference code stored in the EEPROM 20a (S12). If they do not match, it is determined whether m seconds have elapsed (S13). If not, the process returns to S12.
  • the engine control ECU 20 sets the engine 30 to an operable state by the ignition control unit 26 and the function control unit 28. Further, when the switch is turned on, the star is turned on, the engine 30 starts rotating, and ignition and fuel supply are started.
  • m seconds is set to a time longer than the required time required for normal determination. It is also preferable to shorten this m-second sequentially from 3 to 2 to 1 second every time the engine start operation fails (engine stops).
  • the engine control ECU 20 starts operating by turning on the ignition switch or the like. Therefore, the engine control ECU 20 operates the transponder 1 in the same manner as described above.
  • the security code is received from 2 and it is determined whether this matches the reference code (S15). If they match, it is a normal start operation and subsequent operations are permitted.
  • the process of receiving the security code from the key and verifying the code is immediately performed when the key is inserted by the signal from the key insertion switch. Therefore, the code can be collated before the start of the night, and the start can be stopped before the engine starts rotating for an incorrect key operation. Therefore, the running of the vehicle can be completely prohibited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

Pour éviter que l'on puisse faire démarrer un moteur par coupure des liaisons de communication ou similaires, une mémoire EEPROM (20a) d'une unité de commande électronique (20) stocke un code de référence, et une partie de collationnement du code (20b) compare au code de référence un code mot de passe envoyé par un transpondeur (12) porté par une clé (10). Cette comparaison est lancée quand l'insertion de la clé est détectée par un commutateur (22) de détection d'insertion de la clé et se termine avant le démarrage du moteur. Quand une anomalie du circuit de détection (22) est détectée, la partie de collationnement du code (20b) exécute la référence du code jusqu'à ce que le nombre de tours par minute du moteur dépasse 500. Ainsi, même quand le commutateur de détection (22) de l'insertion de la clé tombe en panne, une utilisation correcte de la clé peut être reconnue et le démarrage du moteur est possible.
PCT/JP1997/000891 1996-04-30 1997-03-19 Dispositif antivol pour vehicules WO1997041009A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP97907376A EP0893316B1 (fr) 1996-04-30 1997-03-19 Dispositif antivol pour vehicules
AU19431/97A AU706683B2 (en) 1996-04-30 1997-03-19 Anti-theft system for vehicles
DE1997632408 DE69732408T2 (de) 1996-04-30 1997-03-19 Fahrzeugdiebstahlsicherung
US09/177,892 US6130604A (en) 1996-04-30 1998-10-23 Anti-theft system for vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10970896A JP3216522B2 (ja) 1996-04-30 1996-04-30 車両用盗難防止装置
JP8/109708 1996-04-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/177,892 Continuation US6130604A (en) 1996-04-30 1998-10-23 Anti-theft system for vehicles

Publications (1)

Publication Number Publication Date
WO1997041009A1 true WO1997041009A1 (fr) 1997-11-06

Family

ID=14517210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/000891 WO1997041009A1 (fr) 1996-04-30 1997-03-19 Dispositif antivol pour vehicules

Country Status (5)

Country Link
EP (1) EP0893316B1 (fr)
JP (1) JP3216522B2 (fr)
AU (1) AU706683B2 (fr)
DE (1) DE69732408T2 (fr)
WO (1) WO1997041009A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893315A3 (fr) * 1997-07-23 2002-01-02 Toyota Jidosha Kabushiki Kaisha Système à clé électronique pour véhicules
CN109177919A (zh) * 2018-09-29 2019-01-11 株式会社电装 车辆防盗控制系统及车辆防盗控制方法
CN111094727A (zh) * 2017-10-03 2020-05-01 本田技研工业株式会社 工作机管理系统及工作机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4558136B2 (ja) * 2000-04-26 2010-10-06 株式会社東海理化電機製作所 車両用遠隔操作装置
US6777826B2 (en) 2000-09-13 2004-08-17 Mazda Motor Corporation Anti-theft system for vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556185U (fr) * 1978-06-29 1980-01-16
JPH03128747A (ja) * 1989-10-13 1991-05-31 Mazda Motor Corp 盗難防止装置
JPH0372067U (fr) * 1989-11-20 1991-07-22
JPH07307983A (ja) 1994-05-10 1995-11-21 Nissan Motor Co Ltd 車両用防盗装置
JPH0880811A (ja) * 1994-09-09 1996-03-26 Honda Motor Co Ltd 車両盗難防止装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3441177B2 (ja) * 1994-08-02 2003-08-25 マツダ株式会社 車両の盗難防止装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556185U (fr) * 1978-06-29 1980-01-16
JPH03128747A (ja) * 1989-10-13 1991-05-31 Mazda Motor Corp 盗難防止装置
JPH0372067U (fr) * 1989-11-20 1991-07-22
JPH07307983A (ja) 1994-05-10 1995-11-21 Nissan Motor Co Ltd 車両用防盗装置
JPH0880811A (ja) * 1994-09-09 1996-03-26 Honda Motor Co Ltd 車両盗難防止装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Automobile Technology Case Study / issue no 95603", 1 December 1995, JAPAN AUTOMOBILE MANUFACTURERS ASSOCIATION, INTELLECTUAL PROPERTY COUNCIL
See also references of EP0893316A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893315A3 (fr) * 1997-07-23 2002-01-02 Toyota Jidosha Kabushiki Kaisha Système à clé électronique pour véhicules
US6400254B2 (en) 1997-07-23 2002-06-04 Toyota Jidosha Kabushiki Kaisha Vehicle electronic key system
CN111094727A (zh) * 2017-10-03 2020-05-01 本田技研工业株式会社 工作机管理系统及工作机
CN111094727B (zh) * 2017-10-03 2022-01-14 本田技研工业株式会社 工作机管理系统及工作机
CN109177919A (zh) * 2018-09-29 2019-01-11 株式会社电装 车辆防盗控制系统及车辆防盗控制方法

Also Published As

Publication number Publication date
EP0893316B1 (fr) 2005-02-02
AU706683B2 (en) 1999-06-24
JPH09290708A (ja) 1997-11-11
AU1943197A (en) 1997-11-19
EP0893316A1 (fr) 1999-01-27
JP3216522B2 (ja) 2001-10-09
EP0893316A4 (fr) 2002-11-20
DE69732408D1 (de) 2005-03-10
DE69732408T2 (de) 2006-03-30

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